Plants in thin mats, dark green to yellowish. Stems 3 cm, 1-3 mm wide, julaceous to subjulaceous; often radiculose ventrally. Leaves loosely imbricate, ovate to broadly ovate-lanceolate, symmetric, concave, 1-2.5 × 0.5-1 mm; margins plane, serrulate to entire; apex acuminate or filiform-acuminate, often twisted; costa double, short, one branch 1/3-1/2 leaf length, rarely ecostate; alar cells many, quadrate to rectangular, 12-48 × 10-22 µm, in 2-several rows, 5-12 cells in marginal row; laminal cells smooth; medial cells 75-120 × 7-12 µm. Sporophytes unknown.
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